Question

A line intersects the y axis and x axis at the points P and Q respectively.If (2,-5) is the mid point of PQ,then find the cordinates of P and Q.

Answer 1

since it is intersecting y - axis at point P, so point P (0,y) and intersecting x - axis at point Q, so point Q(x,0). let R be the midpoint.

coordinates of R= { (0+x)/2, (y+0)/2}= (2,-5)

x/2=2 and y/2=-5.

x=4 and y=-10...